code: def __init__(self):
      pass
  
imports: import math, logging, copy, json
  from collections import Counter, OrderedDict
  from nltk.util import ngrams
  from .None import ontology
  from .clean_dataset import clean_slot_values
label_desc: Use image node_id 1 to create a new BLEUScorer object from inherited base classes: object with example: obj = BLEUScorer()